1. Do some global search/replace in Word to add .html tags
2. Copy content into Notepad (because Word has all kinds of formatting overhead you don't want)
3. Use Calibre to output .epub and .mobi verisons
4. Upload epubs to nook, B&N, and ibookstore, and .mobi to Amazon.

If you want to create your ebook:
Step 1: Research your target market.
Step 2: Come up with a killer topic and title.
Step 3: Write the eBook and make it pretty.
Step 4: Convert to a PDF file and give it away.

1. Do some global search/replace in Word to add .html tags
2. Copy content into Notepad (because Word has all kinds of formatting overhead you don't want)
3. Use Calibre to output .epub and .mobi verisons
4. Upload epubs to nook, B&N, and ibookstore, and .mobi to Amazon.

You can use Word and then create to PDF too. I myself find Word is a good tool to decorate my content.